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M. A. Rozenbaum
M. A. Rozenbaum
Saint Petersburg State Mining Institute (Technical University)
Saint Petersburg State Mining Institute (Technical University)
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Articles

Innovation in designing of mining plants
  • Date submitted
    2016-11-15
  • Date published
    2012-04-01

Mechanism of infuence on the powered roof support of rocks under different schemes of its failure above the mined-out space

The paper considers three basic schemes of roof failure above the face bottom of long-wall during mining operations covering the whole diversity of mechanisms of support-roof interaction. The relationships are given for the determination of required rated resistance of the powered support with reference to the schemes of roof failure.

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S. G. Baranov, M. A. Rozenbaum (2012) Mechanism of infuence on the powered roof support of rocks under different schemes of its failure above the mined-out space. Journal of Mining Institute. Vol 198. p. 100.
Innovation in designing of mining plants
  • Date submitted
    2016-11-15
  • Date published
    2012-04-01

Generalized schemes of interaction between the powered support and roof

The paper considers three basic schemes of roof failure above the face bottom of long-wall during mining operations covering the whole diversity of mechanisms of support-roof interaction. The model of interaction between the powered support and heavy roof is given as well as the calculated scheme for the determination of necessary rated resistance of roof.

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M. A. Rozenbaum, S. G. Baranov, M. A. Loginov (2012) Generalized schemes of interaction between the powered support and roof. Journal of Mining Institute. Vol 198. p. 108.
Innovation in designing of mining plants
  • Date submitted
    2016-11-15
  • Date published
    2012-04-01

Provision of geodynamic safety in mining the Barentsburg coal deposit

The minable seam «Verkhny» within the Barentsburg coal deposit is geodynamically hazardous, its geodynamic phenomena manifest itself in the form of proper rock bursts,  shocks in the marginal zones and dynamic faults of  ground. Due to rockburst-hazardous situation the application of the areal relief of rock mass with transition to technological variants of mining with leaving the extended rib pillars at the boundary with the mined-out space, with their cutting by drivage of additional working is applied. Consideration  is  given  to the recommended  variants of pillar leaving  with  the data  of their assignment and applicability to geological-and-mining conditions of mine field sections. Description is given to the calculation of pillar sizes and parameters used for their calculations. Some examples are given of pillar leaving at different sections of mine field with geometrical parameters as well as the information is given on the seam extraction with prospecting  routes (paths) with leaving the support rib and barrier pillars. The leaving of safety support and barrier pillars with substantiation of their sizes is recommended as the method for providing the safe condition  of mining the «Verkhny» coal seam

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M. V. Shvankin, M. A. Rozenbaum, Yu. Ya. Minin, V. P. Stetsenko, A. V. Bondarev (2012) Provision of geodynamic safety in mining the Barentsburg coal deposit. Journal of Mining Institute. Vol 198. p. 122.
Geomechanics
  • Date submitted
    2016-12-05
  • Date published
    2011-02-01

Investigation of exfoliation height of roof rocks in mine workings within the zone of bearing pressure

Within the bearing pressure zone in the working ’ s roof an increase of fracturing of rocks, decrease of their strength and stability, an increase of the working’s width take place in consequence of coal splitting in banks. All this leads to the increase of vault height of natural rock equilibrium as compared with the workings being driven in rock mass.

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M. A. Rozenbaum, S. M. Chernyakhovskii, E. S. Savchenko (2011) Investigation of exfoliation height of roof rocks in mine workings within the zone of bearing pressure. Journal of Mining Institute. Vol 190. p. 210.